The A10905RNCQ is a single-pole rotary switch from C&K Components' A Series, featuring 5-position capability with 30° indexing and non-shorting (break-before-make) contacts. The switch utilizes Q contact material (silver-plated brass) with a contact rating of 2.5 AMPS @ 125 V AC and 350 mA @ 125 V DC, supporting continuous carry current of 5 AMPS. It offers an electrical life of 15,000 make-and-break cycles at full load with up to 300,000 detent operations, contact resistance below 20 mO typical, and insulation resistance of 10? O minimum. The switch operates across a temperature range of -30°C to +85°C and features a 3/8-32 threaded mounting style with epoxy terminal seal for reliable performance. This rotary switch is ideal for automotive, appliance, and industrial equipment applications requiring precise multi-position selection with positive detent positioning.